Jeffrery is on his skateboard and starts skating down a ramp. ten seconds later he is travelling at 20.0 m/s. what was his acceleration? (round to 2 decimal places)

Not all tiles will be usedidentify the element present in each star based on the gaps observed in wavelengths of its light refer to this table containing absorption wavelengths (in nm) of several different elements the table ishelium 447, 502 ,587 ,668carbon 427 ,515, 600 ,678sulfur 425, 565, 639, 675xenon 484, 590, 687calcium 429 ,527, 593, 645silver 421 ,521, 662

How would a small bar magnet be oriented when placed at position x?

What are two different ways you could find the value of a? explain these methods.